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ORDERING driver specific cntls.
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Set offset for the next IO operation. This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. This is not allowed when there is an outstanding IO operation. This operation clears all the buffered data.
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Set the maximum number of reads that ordering driver can have outstanding on driver(s) below. This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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Get the maximum number of parallel reads set on the attr. This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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This driver can be used in 2 modes; ordering (care about offsets of the data read - underlying transport driver may deliver data out of order - this driver will rearrange data based on the offset and deliver inorder to user) and buffering (do not care about offsets - just buffer the data read abd deliver it when requested). This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. This attribute control can be used to enable buffering.
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Get the buffering flag on the attr. This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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